Web Search Research x402 offerings

Convert any URL to clean markdown - fetch a web page and return its main content with headings and links for LLM input

Wikipedia search - best-matching articles with descriptions, excerpts and URLs, in any language

Full Wikipedia article as plain text split by section, with the section list

Wikipedia article summary - description, lead extract, URL, thumbnail and coordinates, in any language

Locate a free open-access PDF for a DOI. Returns whether an open-access copy exists and the best PDF link with its license, version and host type, from Unpaywall and OpenAlex. A cheap, focused open-access locator.

Locate a free open-access PDF for a DOI. Returns whether an open-access copy exists and the best PDF link with its license, version and host type, from Unpaywall and OpenAlex. A cheap, focused open-access locator.

Answer a research question using current web sources. Returns a concise cited web answer with supporting facts, citations, source URLs, and a search timestamp.

Answer a research question using current web sources. Returns a concise cited web answer with supporting facts, citations, source URLs, and a search timestamp.

Fast public web research with exact quotes, source hashes, conflicts, and a propose-only receipt.

Search 19+ platforms in a single API call: Reddit, Hacker News, GitHub, Stack Overflow, arXiv, npm, PyPI, X/Twitter, YouTube, Product Hunt, Dev.to, Qiita, Zenn, Semantic Scholar, GitLab, Hashnode, Lobsters, Lemmy, and x402 Bazaar. Includes Deep Research with AI synthesis. Accepts USDC payments on Base and Solana via x402 protocol.

Search 19+ platforms in a single API call: Reddit, Hacker News, GitHub, Stack Overflow, arXiv, npm, PyPI, X/Twitter, YouTube, Product Hunt, Dev.to, Qiita, Zenn, Semantic Scholar, GitLab, Hashnode, Lobsters, Lemmy, and x402 Bazaar. Includes Deep Research with AI synthesis. Accepts USDC payments on Base and Solana via x402 protocol.

PRESENCE tier (deterministic, no LLM): confirms the claimed value appears on the live page — it does NOT confirm the value is the right answer to the question. Positive verdict is "present", never "pass"; check_type web_field_presence_v1. For full verification use /verify. First 100 checks per client are free: resend with header X-Use-Free-Allowance: yes and no payment to use them.

PRESENCE tier (deterministic, no LLM): confirms the claimed value appears on the live page — it does NOT confirm the value is the right answer to the question. Positive verdict is "present", never "p…

Use when you need to find YouTube videos for a query, e.g. competitor or trend research. Returns up to 50 videos per call with title, channel, views, duration, approximate publish date and thumbnail; optional filters for sort order, upload date and duration. Flat price for any number of videos up to the limit; errors are not charged.

Use when you need how search interest in a topic changes over time or by region, or which related queries are rising. Returns weekly/daily interest (0-100), per-region interest and top/rising related queries from Google Trends. Errors are not charged.

Use when you need the contents of a YouTube playlist (course, series, music or channel uploads playlist): up to 100 videos in playlist order with title, channel, duration and thumbnail, plus playlist title, description and total video count. Accepts a playlist URL or ID (PL…, UU…, OL…). Private/missing playlists and errors are not charged.

Use when you need how search interest in a topic changes over time or by region, or which related queries are rising. Returns weekly/daily interest (0-100), per-region interest and top/rising related queries from Google Trends. Errors are not charged.

Website screenshot: capture any public URL as an image in a real headless Chrome, with its text. See a web page the way a person does: pass ?url= and get a 1280x900 screenshot (JPEG, base64) of the first screen, rendered in a real headless Chrome with JavaScript executed, plus the page title, its full visible text and its links. Bot walls and empty renders are refused before any charge. Paid in USDC on Base.

Screenshot any public URL in headless Chromium. Returns a PNG image. Use when you need VISUAL evidence (layout, charts, a rendered receipt); when you need the text, extract or render are cheaper and machine-readable.

Capture a viewport-sized PNG screenshot of an http(s) URL with headless Chromium; returns a JSON envelope with the PNG base64-encoded under image_base64, plus final_url, title, viewport, and size.

Capture a full-page (scrolled) PNG screenshot of an http(s) URL; returns a JSON envelope with the PNG base64-encoded under image_base64, plus final_url, title, viewport, and size.

Capture a viewport-sized PNG screenshot of an http(s) URL with headless Chromium; returns a JSON envelope with the PNG base64-encoded under image_base64, plus final_url, title, viewport, and size.

Capture a full-page (scrolled) PNG screenshot of an http(s) URL; returns a JSON envelope with the PNG base64-encoded under image_base64, plus final_url, title, viewport, and size.

Service: ScreenshotOne (https://screenshotone.x402.paysponge.com/take)